Abrasive wheel



July 24, 1928.

J. L. HOWLAND ABHASIVE WHEEL Filed Feb. 4, 1927 KNVENTOR ATTORNEYWITNESS:

Patented July 24, 1928.

UNITED STATES JOSEPH L. H OWLANTL OE CLEVELAND, OHIO.

ABRASIVE WHEEL.

Application filed February 4, 1927. Serial No. 165,945.

This invention relates to abrading tools, and its general object is toprovide an abrasive Wheel of the abrasive band receiving type, that iscapable of receiving or having removed therefrom a seamless band ofabrasive material in an eflicient and expeditious manner and with verylittle efiort on the part of the operator.

A further object of the invention is to provide an abrasive wheel thatincludes a soft, resilient material underlying the abrasive, material,so that the abrasive material will give to the work and be suitable foruse on allkinds of work.-

Another object of the invention is to provide a grinding wheel of thecircumferential split type adapted to receive a resilient band and anabrasive band and which is held associated without the use of bolts,nuts or other like fastening means, with the result, damage caused bycasual separation of the parts, as well as flying nuts and bolts, hasbeen entirely eliminated.

Another object of the invention is to provide an abrasive wheel of thecharacter set forth, that is extremely simple in construction, strongand sturdy, and inexpensive to manufacture.

This invention also consists in certain other features of constructionand in the combination and arrangement of the several parts, to behereinafter fully described, illustrated in the accompanying drawingsand specifically pointed out in the appended claims.

In describing my invention in detail, reference will be had to theaccompanying drawings wherein like characters denote like orcorresponding parts throughout the several views, and in which:

Figure 1 is a side elevation of the abrasive Wheel which forms thesubject matter of the present invention and showing the same applied tothe drive shaft of a power unit. K

Figure 2 is a front elevation of the wheel.

Figure 3 is a sectional view taken on line 33 of Figure 2.

Figure 4 is an edge view illustrating the manner of removing or applyingan abrasive band to the resilient band of my wheel.

Referring the drawings in detail the wheel proper includescircumferentially divided sections 1 and 2, each of which includescooperating inwardly inclined rim portions 3 and 4 having formed ontheir outer ends annular flanges 5. Each of the sections also includedisk portions 6 and 7 formed with hubs 8 as best shown in Figure 3 ofthe draw1ngs. The disk portion 6 of the section 1 is provided with aplurality of openings 9 for a purpose which will be presently described.

As shown in Figure 3 as above set forth, the rim portions 3 and 4 areinwardly inchned toward each other and are adapted to receive aresilient band 10 having its inner face which is covered with a leatherband 11, sloped inwardly and toward its center so as to be accommodatedby the rim portions, and by this construction, it will be obvious thatwhen the respective sections are associated with the resilient bandwhich has a normal diameter slightly smaller than the sections,therefore, the sections will cause the resilient band to expand andtherefore hold the. abrasive band 12 taut thereon as -W1ll be readilyapparent. The resilient band proper is formed from rubber or other likeresilient material and is reinforced through its central portion byfabric drilling or the like 13, and a wire mesh 14 which is disposedoutwardly of the drilling as shown in Figure 3 of the drawings. Theflanges 5 provide stops and function -to prevent casual lateral movementof the resilient band.

The hub 8 formed by the respective sections is provided with atransverse groove or key way to accommodate the usual key 15 so as torevent slippage of the wheel upon the tool s iaft, and the usual nut 16is adapted for securing the wheel to the shaft as best shown in Figure 3of the drawings.

From the above description and disclosure of the drawings, it will beobvious that I have provided an abrasive wheel adapted to receive aseamless abrasive band which is frictionally held in operative positionupon the resilient band 10 and when it is desired to a ply the abrasiveband to the resilient ban the latter is arranged in the manner as shownin Figure 4 which will allow easy applicationof the resilient bandthereto. The same action is resorted to when it is desired to remove aworn abrasive band from the resilient band. When the abrasive band 12 isapplied to the resilient band as above set forth, the latter is thenapplied to the respective sections 3 and 4 which are frictionally heldin cooperative association until the wheel in its entirety is secured tothe driving shaft of the power unit in the manner as shown in Figure 3.When it is desired to remove the sections from the resilient band, anail or a tool capable of fitting in one of the openings 9 of thesection 1 can be passed through the opening and caused to contact withthe opposite section for pushing the same from the band and of coursethe first mentioned section 1 can then be readily removed as will beobvious.

It is thought from the foregoing description that the advantages andnovel features of my invention will be readily apparent.

I desire it to be understood that I may make changes in the constructionand in the combination and arrangement of the several parts, providedthat such changes fall within the scopeof the appended claims.

What I claim is:

1. An abrading wheel of the character described comprisingcircumferentially divided sections adapted to be associated to form thewheel, one of said sections being provided with openings, a resilientband adapted to surround said sections when associated, a flange formedwith each section and adapted to cooperate for retaining the resilientband on said sections, a flexible hand between the sections andresilient band, a fabric drilling for reinforcing said resilient band,an abrasive band surrounding said resilient band, and said openingsbeing adapted to receive a tool for separating said sections as and forthe purpose specified.

2. An abrasive Wheel of the character described comprisingcircumferentially divided sections, each of which include an inwardlyinclined rim portion, a disk portion formed in said rim portions, a hubformed with said disk portions, a flange for each rim portion and beingformed on its outer edge thereof, a resilient band for said rim portionsand disposed between said flanges, said resilient band having its innerface sloped inwardly to be accommodated by the inclined surface of therim portions, a leather band between the resilient band and rimportions, reinforcing means including a wire mesh embedded within saidresilient band, and an abrasive band surrounding said resilient band.

In testimony whereof I aflix my signature.

JOSEPH L. HOWLAND.

